Abstract
In Japan, extensive statistics on waste management practices are compiled every year from nationwide surveys. This paper shows, however, that these statistics do not provide the precise data to accomplish optimal so-called integrated solid waste management. The reason is: in the statistics, household waste and industrial waste, quite different in composition, are confused when the waste amounts are calculated. In past studies on waste generation, data from these statistics was employed, so the household waste stream had not been successfully elucidated with generality. By studying documents of waste management from many municipalities, a questioning form of the nationwide survey is proposed in this paper. The typical household waste stream is also shown, with Sapporo as an example.
